'Spanish government shares sympathy with families and friends of the victims, whole the Iranian nation and officials on the pain and suffering, hoping that those missing will be saved and the injured will attain speedy recovery,' read Spanish government's message posted on Foreign Ministry website.
According to IRNA, Spanish Non-Governmental Organizations (NGOs) and Iran lovers sent messages to Iranian Embassy to Madrid to condole government, people and families of the firefighters on the incident.
Iranian government on Friday announced one day of public mourning over the tragedy.
Saturday (January 21) will be the day of public mourning, cabinet said in a statement released on Friday.
Praising the sacrifices of firefighters in protection of people's life, the government offered condolences to the bereaved families of firefighters and wished recovery for the injured.
Head of Iran's Emergency Medical Services, Pir-Hossein Kolivand, said on Thursday that following the collapse of the Plasco Trade Center many firefighters are feared dead.
The fire in Plasco Trade Center, which is one of the biggest in the Iranian capital, collapsed Thursday morning as the fire started in the seventeen-storey business building in the early hours of Thursday, despite efforts by Tehran firefighters to stop it.
A center for making apparel, the Plasco center soon was engulfed in a big fire that caused the collapse of a wall in the building's northern side and its final total collapse.
EghtesadOnline: Spain on Friday condoled Iranian officials and nation, especially the bereaved family of the victims and their friends, on the January 19 Plasco Trade Center fire and collapse, which left tens of people, including firefighters, killed and many others injured or missing.